Results 71 to 80 of about 52,081 (256)
Química Nova, 2008 The thermal decomposition of hydroxyl-terminated polybutadiene (HTPB)/ammonium nitrate (AN) based propellants, so called smokeless formulations, and raw materials were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The
Jony Andrade +6 more
doaj +1 more source
Recovery of aluminum from composite propellants [PDF]
, 1980 Aluminum was recovered from solid rocket propellant containing a small amount of oxidizer by depolymerizing and dissolving propellant binders (containing functional or hydrolyzable groups in a solution of sodium methoxide) in an alcohol solvent ...
Shaw, G. C.
core +1 more source
Worldwide Rocket Launch Emissions 2019: An Inventory for Use in Global Models
Earth and Space Science, Volume 11, Issue 10, October 2024.Abstract The rate of rocket launches is accelerating, driven by the rapid global development of the space industry. Rocket launches emit gases and particulates into the stratosphere, where they impact the ozone layer via radiative and chemical processes.
Tyler F. M. Brown +4 more
wiley +1 more source
Numerical study of cook-off temperature and ignition dynamics in high-energetic materials
Academia EngineeringThis study presents an approach for predicting temperatures and ignition time during the cook-off process of solid propellants, with a focus on identifying potential hot spots and conduction losses.
Mukhtiar Ahmed +3 more
doaj +1 more source
Hybrid propulsion technology program: Phase 1. Volume 3: Thiokol Corporation Space Operations [PDF]
Three candidate hybrid propulsion (HP) concepts were identified, optimized, evaluated, and refined through an iterative process that continually forced improvement to the systems with respect to safety, reliability, cost, and performance criteria. A full
Schuler, A. L., Wiley, D. R.
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Propellants, Explosives, Pyrotechnics, Volume 49, Issue 9, September 2024.Abstract Shock‐to‐Detonation Transition (SDT) of heterogeneous high explosives results from processes occurring at the microstructural level. Thus, mesoscale modeling is expected to allow a better comprehension of the SDT. Recent experimental evidence suggested that hotspots mainly developed on the surface of the energetic crystals, which are then ...
Jérôme Saunier +4 more
wiley +1 more source
Designed Monomers and Polymers, 2019 Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB).
Tianze Cheng
doaj +1 more source
Storage of solid propellants in a dry environment [PDF]
Storage of solid propellants in either a dry or a vacuum environment causes a significantly greater increase in the propellants' modulus and maximum tensile strength than does ambient storage.
Udlock, D. E.
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Reduced Reaction Mechanism for Rocket Nozzle Ablation Simulations [PDF]
, 2017 Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143107/1/6.2017-3682 ...
Boyd, Iain D., Cross, Peter G.
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Consideration of fuel and oxidizer combinations for mass and volume limited hybrid rocket motors
Propellants, Explosives, Pyrotechnics, Volume 49, Issue 9, September 2024.Abstract This research considers different storable oxidizer and fuel combinations for hybrid propulsion, looking for the most adequate candidates for mass and volume limited systems. High specific impulse Isp is the main indication for minimum mass, whereas high density specific impulse ρIsp is a good measure for smaller volume.
Michael Presman, Alon Gany
wiley +1 more source